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Fig. 7


Overlay of the integrated flux of the NH3(J,K) = (3, 3) line (color image) with the positions of known NH3 masers measured with interferometry (black plus signs) in the W51 IRS2 region. The NH3 (3, 3) map was made with the VLA-C configuration at 1.̋2 resolution (Zhang & Ho 1995). The color scales are linear from 0 to 700 mJy beam-1 km s-1. Positions of the NH3 masers from doublets (J,K) = (3, 3) (Zhang & Ho 1995), (9, 8) (Wilson et al. 1991), (6, 6), (7, 7), (9, 9) (this study), are indicated in the map. The numbers next to the plus signs indicate the maser peak velocities in km s-1.

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